In this Post You Send Simple Email using Asp.Net C#

Important NameSpaces

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using System.Net.Mail;

using System.Net;

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Register Button Click Event

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        SmtpClient smtp = new SmtpClient();

        smtp.Host = "smtp.gmail.com";

        smtp.Port = 587;

        smtp.Credentials = new System.Net.NetworkCredential("xyz@gmail.com", "Your Password Here");

        smtp.EnableSsl = true;

        MailMessage msg = new MailMessage();

        msg.Subject = "Hello " + TextBox1.Text + "  Thanks for Register at Csharpcode  Hub";

        msg.Body = "Hi, Thanks For Your Registration at Csharpcode  Hub, We will Provide You The Latest Update. Thanks";

        string toaddress = TextBox2.Text;

        msg.To.Add(toaddress);

        string fromaddress = "Csharpcode Hub<xyz@gmail.com>";

        msg.From = new MailAddress(fromaddress);

        try

        {

            smtp.Send(msg);

            Label3.Text = "Your Email Has Been Registered with Us";

            TextBox1.Text = "";

            TextBox2.Text = "";



        }

        catch

        {

            throw;

        }